Geopipe with partial perforated structure

ABSTRACT

A geopipe with partial perforated structure is disclosed. The geopipe includes a water permeable portion with a plurality of perforated through holes arranged on an upper arc surface of the geopipe for permitting liquid outside the geopipe permeating into the geopipe through the perforated through holes. A water draining portion formed on a lower arc surface from the first end through the second end of the geopipe for draining the water permeated from the perforated through holes of the water permeable portion of the geopipe. The geopipe is further covered with a net layer, or a reinforced layer thereon.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a drain pipe, and moreparticularly to a geopipe with partial perforated structure.

[0003] 2. Description of the Prior Art

[0004] Underground pipes carrying water or liquids are typicallyinstalled to drain fluids into the ground when the liquid pipe transportis completed. These pipe drains are normally installed beneath theground and typically are surrounded by a loose gravel or pebble to aidin collecting and diffusing the drained liquids into the ground.

[0005] Various drains pipe structures are developed in prior art to meetthe requirements as described above. An example of a prior art pipe wasdisclosed in U.S. Pat. No. 4,589,798 issued May 20, 1986, entitled“Drainage system”. This prior art patent disclosed a drainage system fordisbursing water supplied by a drain pipe including an enclosurepositionable in water permeable material, its top edge generally flushwith terrain, and said enclosure having a generally perforated top, anopening in the bottom and an opening in a side wall. Water received bythe enclosure through an opening in the side wall and is generallyspread and thereby gradually dispersed around the enclosure and residualwater in the enclosure is gradually leaked off through the opening inthe bottom. The water passing down through said drain pipe generallyfills said enclosure and thereafter flows upward and then outward fromsaid enclosure and is dispersed around said enclosure, and finally,residual water filling said enclosure passes down through said openingin said base and is dissipated.

[0006] Another example of the prior art pipe was disclosed in U.S. Pat.No. 4,490,072. The drainage device includes a stiff plastic core havingrigid raised portions and valleys therebetween is oriented verticallyand tangentially to a drain pipe which has axially spaced raised annularportions contacting the core and annular recesses with slots to providepassageways for ground water into the pipe. A permeable plastic membraneis warped around the core and the pipe to prevent fill from filling thepassageways so defined.

[0007] Another example of the prior art pipe was disclosed in U.S. Pat.No. 5,637,211, entitled pipe drain diffusion bag system and kit. Aliquid diffuser drain bag for pipe drains comprising a liquid permeablewoven nylon bag with an opening sized and structured to fit over andaround an underground pipe drain; said bag sized to hold a plurality ofloosely packed light weight rigid particles, and ties to secure the bagopening around the pipe drain.

[0008] It is noted that none of those prior art patents disclosed ageopipe with perforated structure. There thus remains a need for a drainpipe with permeable function which maintains its water collection andground dispersion ability.

SUMMARY OF THE INVENTION

[0009] Accordingly, the primary object of the present invention is toprovide a pipe drain system with partial perforated structure.

[0010] Another object of the present invention is to provide a permeablegeopipe with a number of through holes arranged on the geopipe.

[0011] To achieve the above objects, the geopipe in accordance with apreferable embodiment of the present invention is provided with a waterpermeable portion comprising a plurality of perforated through holesarranged on an upper arc surface from the first end through the secondend of the elongate pipe for permitting the liquid outside the elongatepipe permeating into the elongate pipe through the perforated throughholes; and a water draining portion formed on a lower arc surface fromthe first end through the second end of the elongate pipe for drainingthe water permeated from the perforated through holes of the waterpermeable portion of the elongate pipe.

[0012] Preferably, the geopipe of the present invention may be furthercovered with a net layer or a reinforced layer thereon. A plurality ofannular rib may surround the geopipe and spaced from each other. Thethrough holes arranged on the geopipe may be in a form of oval-shape,circle-shape, cross-shape, rectangle-shaped, or square-shape manner.

[0013] The present invention will be apparent to those skilled in theart by reading the following description of preferred embodimentsthereof, with reference to the accompanying drawings, in which:

BRIEF DESCRIPTION OF THE DRAWINGS

[0014]FIG. 1 is a perspective view of the geopipe in accordance with afirst embodiment of the present invention;

[0015]FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

[0016]FIG. 3 is a cross-sectional view showing the geopipe of thepresent invention is buried in ground;

[0017]FIG. 4 is a perspective view showing a net layer is furthercovered on the geopipe of FIG. 1;

[0018]FIG. 5 is a perspective view showing a reinforced layer is furthercovered on the geopipe of FIG. 1;

[0019]FIG. 6 is a perspective view of the geopipe in accordance with asecond embodiment of the present invention;

[0020]FIG. 7 is a perspective view of the geopipe in accordance with athird embodiment of the present invention;

[0021]FIG. 8 is a perspective view of the geopipe in accordance with afourth embodiment of the present invention; and

[0022]FIG. 9 is a perspective view of the geopipe in accordance with afifth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] With reference to the drawings and in particular to FIGS. 1through 2, a geopipe constructed in accordance with a first embodimentof the present invention is shown. The geopipe of the present inventionis provided with an elongate pipe 1 for draining liquids, such as water.The elongate pipe 1 has a suitable length with a first end 1 a and asecond end 1 b. The elongate pipe 1 is provided with a water drainingportion 11 formed on the lower arc surface from the first end 1 athrough the second end 1 b of the elongate pipe 1. Particularly, theelongate pipe 1 is provided with a water permeable portion 12 formed onthe upper arc surface from the first end 1 a through the second end 1 bof the elongate pipe 1. Preferably, the area ratio of the water drainingportion 11 and the water permeable portion 12 is about 2:3 to 1:2.Actual perforated portions can be manufactured to meet theproject-specific requirements.

[0024] With reference to FIG. 2 which is a cross sectional view takenalong line A-A of FIG. 1, the water permeable portion 12 of theelongated pipe 1 is formed with a plurality of perforated through holes2 from the first end 1 a through the second end 1 b of the elongate pipe1, so that the liquid outside the elongate pipe 1 may be permeated intothe elongate pipe 1 through the perforated through holes 2 and thendrained by the water draining portion 11.

[0025] A number of elongate pipes 1 may be connected by connectors toform an elongate drain pipe. The connections may be made by eithermechanical connector or heat-fusion. The elongate drain pipe composed ofa number of elongate pipes may be buried in ground for draining water.Preferably, the elongate drain pipe is buried in ground consisting of atopsoil layer 3, a gravel layer 4, and an undersoil layer 5, as shown inFIG. 3. With reference to FIG. 4, it is a perspective view showing thata net layer 6 may be further fully covered on the elongate pipe 1. Bymeans of the net layer 6, it can prevent objects outside the elongatepipes 1 from blocking the perforated through holes 2 formed on theelongate pipes 1.

[0026] With reference to FIG. 5, it is a perspective view showing that areinforced layer 7 may be further fully covered on the elongate pipe 1.By means of the reinforced layer 7, the mechanical compressive strengthof the elongate pipes 1 may be effectively improved. The reinforcedlayer 7 may be formed by a plurality of annular ribs surrounding thegeopipe and spaced from each other.

[0027] The perforated through holes 2 arranged on the elongate pipe 1 ofthe first embodiment are in a form of circle-shaped through hole, asshown in FIG. 1. FIG. 7 is a perspective view of the elongate pipe 1 inaccordance with a second embodiment of the present invention. Thestructure of this embodiment is similar to that of the first embodimentdescribed above, so that the same reference numbers used in the previousdrawing will be used to refer to the same or like parts. However, theperforated through holes arranged on the elongate pipe 1 are in a formof oval-shaped through hole 21.

[0028]FIG. 8 is a perspective view of the elongate pipe 1 in accordancewith a third embodiment of the present invention. The structure of thisembodiment is also similar to that of the first embodiment describedabove. However, the perforated through holes arranged on the elongatepipe 1 are in a form of square-shaped or rectangle-shaped through hole22.

[0029]FIG. 9 is a perspective view of the elongate pipe 1 in accordancewith a forth embodiment of the present invention. The structure of thisembodiment is also similar to that of the first embodiment describedabove. However, the perforated through holes arranged on the elongatepipe 1 are in a form of cross-shaped through hole 23.

[0030] In application, the geopipe of the present invention may beapplied to football and baseball field drainage, sports field drainage,retaining walls drainage construction, retaining walls drainagefinished, foundation drainage, roadway underdrains, agriculturalapplications, and sanitary underdrains, etc.

[0031] Although the present invention has been described with respect tothe preferred embodiments, it is contemplated that a variety ofmodifications, variations and substitutions may be done withoutdeparting from the scope of the present invention that is intended to bedefined by the appended

I claim:
 1. A geopipe for draining liquids, comprising: an elongate pipehaving a first end and a second end; a water permeable portioncomprising a plurality of perforated through holes arranged on an upperarc surface from the first end through the second end of the elongatepipe for permitting the liquid outside the elongate pipe permeating intothe elongate pipe through the perforated through holes; and a waterdraining portion formed on a lower arc surface from the first endthrough the second end of the elongate pipe for draining the waterpermeated from the perforated through holes of the water permeableportion of the elongate pipe.
 2. The geopipe as claimed in claim 1,wherein the elongate pipe is further covered with a net layer thereon.3. The geopipe as claimed in claim 1, wherein the elongate pipe isfurther covered with a reinforced layer thereon.
 4. The geopipe asclaimed in claim 3, wherein the reinforced layer comprises a pluralityof annular ribs surrounding the geopipe and spaced from each other. 5.The geopipe as claimed in claim 1, wherein the perforated through holeis in a form of oval-shaped through hole.
 6. The geopipe as claimed inclaim 1, wherein the perforated through hole is in a form ofcircle-shaped through hole.
 7. The geopipe as claimed in claim 1,wherein the perforated through hole is in a form of cross-shaped throughhole.
 8. The geopipe as claimed in claim 1, wherein the perforatedthrough hole is in a form of rectangle-shaped through hole.
 9. Thegeopipe as claimed in claim 1, wherein the perforated through hole is ina form of square-shaped through hole.